KR860001329B1 - 전화 선로용 루우프 회로 - Google Patents

전화 선로용 루우프 회로 Download PDF

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Publication number
KR860001329B1
KR860001329B1 KR1019830002987A KR830002987A KR860001329B1 KR 860001329 B1 KR860001329 B1 KR 860001329B1 KR 1019830002987 A KR1019830002987 A KR 1019830002987A KR 830002987 A KR830002987 A KR 830002987A KR 860001329 B1 KR860001329 B1 KR 860001329B1
Authority
KR
South Korea
Prior art keywords
loop circuit
transistor
switch
line
circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
KR1019830002987A
Other languages
English (en)
Korean (ko)
Other versions
KR840005637A (ko
Inventor
마리 앙드레 뮤니에 베르나르
Original Assignee
꽁빠그니 제네랄르 드 꽁스뜨럭숑 뗄레포니끄
쟝-클로오드 로오로
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 꽁빠그니 제네랄르 드 꽁스뜨럭숑 뗄레포니끄, 쟝-클로오드 로오로 filed Critical 꽁빠그니 제네랄르 드 꽁스뜨럭숑 뗄레포니끄
Publication of KR840005637A publication Critical patent/KR840005637A/ko
Application granted granted Critical
Publication of KR860001329B1 publication Critical patent/KR860001329B1/ko
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H04M1/30—Devices which can set up and transmit only one digit at a time
    • H04M1/31—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M7/00—Arrangements for interconnection between switching centres
    • H04M7/0096—Trunk circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Telephonic Communication Services (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Telephone Function (AREA)
  • Communication Cables (AREA)
KR1019830002987A 1982-07-07 1983-06-30 전화 선로용 루우프 회로 Expired KR860001329B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR8211898A FR2530105B1 (fr) 1982-07-07 1982-07-07 Circuit de boucle pour ligne telephonique
FR11898 1982-07-07
FR8211898 1982-07-07

Publications (2)

Publication Number Publication Date
KR840005637A KR840005637A (ko) 1984-11-14
KR860001329B1 true KR860001329B1 (ko) 1986-09-13

Family

ID=9275759

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019830002987A Expired KR860001329B1 (ko) 1982-07-07 1983-06-30 전화 선로용 루우프 회로

Country Status (15)

Country Link
US (1) US4535202A (enrdf_load_stackoverflow)
EP (1) EP0099272A3 (enrdf_load_stackoverflow)
JP (1) JPS5962289A (enrdf_load_stackoverflow)
KR (1) KR860001329B1 (enrdf_load_stackoverflow)
AU (1) AU554170B2 (enrdf_load_stackoverflow)
BR (1) BR8303407A (enrdf_load_stackoverflow)
CA (1) CA1206646A (enrdf_load_stackoverflow)
DK (1) DK241583A (enrdf_load_stackoverflow)
FR (1) FR2530105B1 (enrdf_load_stackoverflow)
GR (1) GR78898B (enrdf_load_stackoverflow)
IN (1) IN159070B (enrdf_load_stackoverflow)
NO (1) NO831050L (enrdf_load_stackoverflow)
NZ (1) NZ204604A (enrdf_load_stackoverflow)
PT (1) PT76601B (enrdf_load_stackoverflow)
ZA (1) ZA832714B (enrdf_load_stackoverflow)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4564770A (en) * 1983-03-29 1986-01-14 Rca Corporation Solid state relay with fast turnoff
AT393056B (de) * 1985-04-03 1991-08-12 Alcatel Austria Ag Uebertragerschaltung fuer fernsprechnetze
GB2220820B (en) * 1988-07-13 1992-07-08 Philips Electronic Associated Telephone line loop current regulator
JPH05176354A (ja) * 1991-12-20 1993-07-13 Fujitsu Ltd 加入者インタフェース回路
AU1869695A (en) * 1994-02-04 1995-08-21 Adak Communications Corporation Power supply for private branch exchange
US5621731A (en) * 1994-02-04 1997-04-15 Omnilink Communications Corporation Private exchange for ISDN
CA2146596C (en) * 1994-04-29 1999-09-21 Harry W. Moore, Iii Loop current detector
WO2009134151A1 (en) * 2008-04-29 2009-11-05 The University Of Waikato Digital control for controlling and linearizing an ac impedance

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE786341A (fr) * 1971-07-08 1973-01-17 Int Standard Electric Corp Circuit gyrateur a limitation de courant
US3801837A (en) * 1972-12-07 1974-04-02 Eaton Corp Photocoupling line isolation
FR2251975B1 (enrdf_load_stackoverflow) * 1973-11-16 1979-08-03 Labo Cent Telecommunicat
US3987319A (en) * 1974-12-05 1976-10-19 The United States Of America As Represented By The Secretary Of The Army Radiation-activated sensor
FR2315811A1 (fr) * 1975-06-27 1977-01-21 Labo Cent Telecommunicat Dipole electronique pour le bouclage d'une ligne telephonique
US4282604A (en) * 1979-04-04 1981-08-04 Jefferson William T Optical isolation circuit for bidirectional communication lines
US4476351A (en) * 1982-03-25 1984-10-09 Rockwell International Corporation Subscriber loop current regulator

Also Published As

Publication number Publication date
NO831050L (no) 1984-01-09
PT76601B (fr) 1985-12-10
DK241583A (da) 1984-01-08
NZ204604A (en) 1985-10-11
AU554170B2 (en) 1986-08-07
CA1206646A (en) 1986-06-24
FR2530105B1 (fr) 1985-07-05
KR840005637A (ko) 1984-11-14
AU1597483A (en) 1984-01-12
BR8303407A (pt) 1984-02-07
US4535202A (en) 1985-08-13
PT76601A (fr) 1983-05-01
EP0099272A2 (fr) 1984-01-25
GR78898B (enrdf_load_stackoverflow) 1984-10-02
IN159070B (enrdf_load_stackoverflow) 1987-03-21
FR2530105A1 (fr) 1984-01-13
DK241583D0 (da) 1983-05-27
ZA832714B (en) 1984-02-29
JPS5962289A (ja) 1984-04-09
EP0099272A3 (fr) 1984-11-07

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Legal Events

Date Code Title Description
PA0109 Patent application

Patent event code: PA01091R01D

Comment text: Patent Application

Patent event date: 19830630

PA0201 Request for examination
PG1501 Laying open of application
PE0902 Notice of grounds for rejection

Comment text: Notification of reason for refusal

Patent event date: 19860426

Patent event code: PE09021S01D

PG1605 Publication of application before grant of patent

Comment text: Decision on Publication of Application

Patent event code: PG16051S01I

Patent event date: 19860818

E701 Decision to grant or registration of patent right
PE0701 Decision of registration

Patent event code: PE07011S01D

Comment text: Decision to Grant Registration

Patent event date: 19861129